单项选择题
A.td{width:50px;}B.td{height:50px;}C.td{line-height:50px;}D.td{font-size:50px;}
A.<embed src=""></embed>B.<bgsound src=""/>C.<marquee></marquee>D.<a href=""></a>
A.<marquee scrollamount="200">...</marquee>B.<marquee loop="200">...</marquee>C.<marquee auto="200">...</marquee>D.<marquee scrolldelay="200">...</marquee>